package com.it.controller.admin;


import com.it.domain.BlogEntity;
import com.it.domain.UserEntity;
import com.it.service.BlogService;
import com.it.service.BlogTypeService;
import com.it.service.BlogTagService;
import com.it.vo.BlogQueryVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.HashMap;

/**
 * @author : code1997
 * @date : 2021/9/9 22:46
 */
@Controller
@RequestMapping("/admin")
public class BlogController {

    /**
     * 用于替换返回的路径
     */
    private static final String INPUT = "admin/blogs-input";
    private static final String LIST = "admin/blogs";
    private static final String REDIRECT_LIST = "redirect:/admin/blogs";

    @Autowired
    private BlogService blogService;
    @Autowired
    private BlogTypeService typeService;
    @Autowired
    private BlogTagService blogTagService;

    @GetMapping("/blogs")
    public String blogs(BlogQueryVo blog, Model model) {
        model.addAttribute("types", typeService.listType());
        model.addAttribute("page", blogService.listBlog(new HashMap<>(), blog));
        return LIST;

    }


    @PostMapping("/blogs/search")
    public String blogsByCondition(BlogQueryVo blog, Model model) {
        System.out.println(blog);
        model.addAttribute("page", blogService.listBlog(new HashMap<>(), blog));
        /*只返回一个片段，来实现局部的渲染，而不会刷新其他的值*/
        return "admin/blogs::blogList";
    }

    @GetMapping("/blogs/input")
    public String toBlogInputPage(Model model) {
        System.out.println("跳转到blogs的新增页面");
        model.addAttribute("types", typeService.listType());
        model.addAttribute("tags", blogTagService.listTag());
        model.addAttribute("blog", new BlogEntity());
        return INPUT;
    }

    @GetMapping("/blogs/{id}/input")
    public String toBlogEditInputPage(@PathVariable Long id, Model model) {
        System.out.println("跳转到blogs的修改页面");
        model.addAttribute("types", typeService.listType());
        model.addAttribute("tags", blogTagService.listTag());
        BlogEntity blog = blogService.getBolg(id);
        blog.init();
        model.addAttribute("blog", blog);
        return INPUT;
    }

    /**
     * 这里只做了前端的校验
     */
    @PostMapping("/blogs")
    public String addOrEditBlog(BlogEntity blog, HttpSession session, RedirectAttributes attributes) {
        System.out.println("blog===>"+blog);
        UserEntity user = (UserEntity) session.getAttribute("user");
        blog.setUser(user);
        blog.setUserId(user.getId());
        blog.setType(typeService.getType(blog.getType().getId()));
        blog.setTypeId(blog.getType().getId());
        blog.setTags(blogTagService.listTag(blog.getTagIds()));
        BlogEntity tempBlog;
        if (blog.getId() == null) {
            tempBlog = blogService.saveBlog(blog);
        } else {
            tempBlog = blogService.updateBlog(blog.getId(), blog);
        }
        if (tempBlog == null) {
            attributes.addFlashAttribute("message", "新增失败");
        } else {
            attributes.addFlashAttribute("message", "新增成功");
        }
        return REDIRECT_LIST;
    }

    @GetMapping("/blogs/{id}/delete")
    public String delete(@PathVariable Long id, RedirectAttributes attributes) {
        blogService.deleteBlog(id);
        attributes.addFlashAttribute("message", "删除成功！");
        return REDIRECT_LIST;
    }


}
